Assignment #3

Amy Zheng (azheng@unixg.ubc.ca) Fri, 10 Nov 2000 00:03:50 -0800 

Date: Fri, 10 Nov 2000 00:03:50 -0800
From: Amy Zheng <azheng@unixg.ubc.ca>
Subject: Assignment #3



Hello:

	When compiling the top-level entity file, there are error messages on the
line: signal a_in, a_out: std_logic_vector(data_word);  While "data_word"
is of type unsigned, as declared in the datatype package.  The error
messages are: "Subtype indication error: subtype indication base type
'UNSIGNED' must match constraining base type 'INTEGER'"  and "Type error:
range must be of a discrete type".  What doese these messages mean?  I have
never use integer type in my codes.  

	Thanks for all the help.

Amy,